UV Coating

Anyone know what percent UV protection the roof and rear windows provide? Just had a little battle with skin cancer from all the sun and surf and am trying to avoid having more of my face taken off me. If you can point me in the right direction that would be great. Thanks!

I know the roof has special UV filters in it. These do not need to be an outer coating, they can be part of the glass. But we also know how the Tesla roof beads water... this is interesting 1. Does the Tesla roof have a special coating on it? 2. Does the Tesla roof require any special care...

I'm not going to wrap my red 3, but I want to use one of the various wipe-on sealants to help protect the paint. I know the glass roof is supposed to have some sort of UV coating, so my question is if these wipe-on sealants are OK to use on the glass, or will they harm the factory UV coating?